19082872417 has 4 divisors (see below), whose sum is σ = 21808997056. Its totient is φ = 16356747780.

The previous prime is 19082872409. The next prime is 19082872429. The reversal of 19082872417 is 71427828091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19082872417 - 2³ = 19082872409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19082872477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363062309 + ... + 1363062322.

It is an arithmetic number, because the mean of its divisors is an integer number (5452249264).

Almost surely, 2^19082872417 is an apocalyptic number.

It is an amenable number.

19082872417 is a deficient number, since it is larger than the sum of its proper divisors (2726124639).

19082872417 is an equidigital number, since it uses as much as digits as its factorization.

19082872417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726124638.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 19082872417 in words is "nineteen billion, eighty-two million, eight hundred seventy-two thousand, four hundred seventeen".